- •1. The role of icTs in key sectors of society
- •Technologies that provide access to information through telecommunications
- •Technologies that provide access to information through telecommunications
- •None of the above
- •2. Introduction to computer systems. Computer systems architecture
- •3. Software & Operating Systems
- •All of the above
- •All of the above
- •System software
- •System software
- •System software
- •4. Human-Computer Interaction
- •Usable systems do not need to recover from errors because they never crash
- •5. Database systems
- •Collection of related data and its metadata organized in a structured format
- •Many-to-one
- •Many-to-many
- •None of the above
- •None of the above
- •None of the above
- •6. Data analysis and Data management
- •None of the above
- •All of the above
- •Blue hair
- •Student
- •7. Networks and Telecommunications
- •8. Cybersecurity
- •None of the above
- •None of the above
- •None of the above
- •None of the above
- •All of the above
- •9. Internet Technologies
- •Peer-to-peer
- •Client-server
- •None of the above
- •10. Cloud and Mobile Technologies
- •11. Multimedia Technologies
Which color shows a normal distribution (curve) in the plot?
blue (left)
red (middle)
green (right)
None of the above
All of the above
What is the median?
The average of the values (i.e.: 1, 3, 20 = 24/3)
An unusual or high value
The value that occurs most frequently (1, 2, 2, 2, 4, 8 = 2)
The middle value (i.e.: 1, 3, 5, 12, 22 = 5)
The square root of variance
What is the mode?
The average of the values (i.e.: 1, 3, 20 = 24/3)
An unusual or high value
The value that occurs most frequently (1, 2, 2, 2, 4, 8 = 2)
The middle value (i.e.: 1, 3, 5, 12, 22 = 5)
The square root of variance
What is an example of an attribute?
car
computer
USB drive
Blue hair
student
What is an example of a data object?
Student
red
64GB
gender (M/F)
32 KG
7. Networks and Telecommunications
What is the World Wide Web?
technologies that provide access to information through telecommunications
a collection of interconnected documents and other resources
the application of scientific knowledge for practical purposes
global computer network providing a variety of information and communication facilities
exchange of information over significant distances by electronic means
What was the purpose of ARPANET?
to develop a platform for the WWW
to share research information
an experiment to test sharing resources
a university project to share MP3 files
a super-secret government project to share classified data
What is NOT true of a network?
A network is a way to get “stuff” between 2 or more “things”
Networks usually do not have internal connections
A network allows sharing information among computer
The postal system is an example of a network
Metros are an example of a network
How many devices are required for a network to be called a computer network?
1
2
3
4
5
What is the scale of a PAN?
Vicinity (e.g., Bluetooth)
Building (WiFi, Ethernet)
City (DSL)
Country (Large ISP)
Global
What is the scale of a LAN?
Vicinity (e.g., Bluetooth)
Building (WiFi, Ethernet)
City (DSL)
Country (Large ISP)
Global
What is the scale of a MAN?
Vicinity (e.g., Bluetooth)
Building (WiFi, Ethernet)
City (DSL)
Country (Large ISP)
Global
What is the scale of a WAN?
Vicinity (e.g., Bluetooth)
Building (WiFi, Ethernet)
City (DSL)
Country (Large ISP)
Global
What type of connection do these networks represent?
Physical
Virtual
Intermittent
Constant
Logical
What type of connection does this network represent?
Physical
Virtual
Intermittent
Constant
Logical
What is the most common type of network topology used today?
Fish
Star
Bus
Ring
Tree
A laptop, smartphone, or server are examples of what network component?
applications
hosts
routers
links
interfaces
A DSL modem and wireless access points are examples of what network component?
applications
hosts
routers
links
interfaces
Wires, cables and radio signals are examples of what network component?
applications
hosts
routers
links
interfaces
Network-application and network-network are examples of what on a network?
applications
hosts
routers
links
interfaces
What is the function of the data layer?
Transmit data by an electric voltage, radio frequencies, or light over a physical medium
Sends data node-to-node
Provides network addressing and routing (host-to-host)
Delivers data from process-to-process
Provides application services to users and programs
What is the function of the network layer?
Transmit data by an electric voltage, radio frequencies, or light over a physical medium
Sends data node-to-node
Provides network addressing and routing (host-to-host)
Delivers data from process-to-process
Provides application services to users and programs
What is the function of the transport layer?
Transmit data by an electric voltage, radio frequencies, or light over a physical medium
Sends data node-to-node
Provides network addressing and routing (host-to-host)
Delivers data from process-to-process
Provides application services to users and programs